Drawing part solid-liquid composite lubricant coating and preparation method thereof

Abstract

The invention discloses a drawing part solid-liquid composite lubricant coating and a preparation method thereof. The drawing part solid-liquid composite lubricant coating is compounded from a solid lubrication layer and a liquid lubrication layer, wherein the solid lubrication layer is prepared from 10ml of epoxy resin, 10ml of polyamide, 5g of tin bronze, 3-5g of polytetrafluoroethylene, 2-3g of graphite and 5ml of anhydrous alcohol; and the liquid lubrication layer is 10ml of liquid paraffin. The preparation method comprises the following steps: spraying a mixed adhesive coating on a pretreated drawing part surface, and curing in air for 12 hours to obtain the solid lubrication layer; and spreading the 10ml of liquid paraffin on the surface of the solid lubrication layer. The invention can smooth the drawing part surface and lower the friction factor, does not have any crack, has good lubrication action, lowers the cost of the drawing part, and enhances the drawing efficiency.

Description

technical field [0001] The invention relates to a solid-liquid composite lubricating coating for improving the lubricating performance in the drawing process, reducing microcracks generated in the drawing process, and improving the quality of the drawn parts. Background technique [0002] Wear leads to surface damage of mechanical parts, which in turn makes mechanical equipment invalid; while lubrication is the most effective measure to reduce friction and control wear. Therefore, lubricating coatings are of great significance for saving energy and raw materials, prolonging the service life of mechanical equipment and improving work reliability. In terms of deep-drawing lubrication methods, at present, when sheet metal is deep-drawn, it is mostly drawn in an oil-free state or under ordinary lubricating oil. In this case, the drawing friction coefficient is high, the limit drawing coefficient is low, and the sheet is easy to be cracked, etc., and the drawing effect is not id...

AI Technical Summary

Problems solved by technology

The advantage of liquid lubrication is that it has good fluidity, and the friction coefficient of complete liquid lubrication is small. It is the most common lubrication method, but the oil film strength of liquid lubrication is not high. When the lubrication is convenient or the equipment is stopped, the liquid lubricant will return to Fuel tank or bottom of equipment

Therefore, the single lubrication method of solid or liquid has certain limitations in use, cannot fully meet the requirements of normal operation of the equipment, and will inevitably cause increased friction and wear